Eraser-holder for pencils.



Patented Alon-2o, 1915.

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QM luem C1110: Mel} A. F. W. BOWEN.

ERASER HOLDER FO'R PENCILS. APPLICATION FILED DEC. 28. 1905. RENEWEDNOV. 3. I914- 1 1 .13 5}. m y Patented Apr. 20, 11915.

2 BHEET8-BHEBT 2.

WITNESSES.-

ATTORNLK orrion.

ANNIE F. W. BOWEN, OF SAN FRANCISCO, CALIFORNIA.

ERASER-HOLDER FOR PENCILS.

maaoaa.

specification of Letters Patent.

Patented Apr. 2181, 1915.

Application filed December 28, 1905, Serial No. 293,688. RenewedNovember 3, 1914. Serial No. 870,168.

To all whom it may concern Be it known that I, ANN-1E FLORENCE W. BOWEN,a citizen of the United States, residing at San Francisco, in the countyof San Francisco and State of California, have invented certain new anduseful Improvements in Eraser-Holders .for Pencils, of which thefollowing is a specification.

This invention relates to an improved eraser holder for pencils, theobject ofthe invention being to provide a cheap and simple device ofthis character, constructed so as to hold the eraser securely, to permitit to be adjusted to compensate for wear of the eraser, as well as toallow any desired portion thereof to project beyond the holder, and toenable it to be attached to any pencil of ordinary thickness.

In the accompanying drawing, Figure 1 is a side elevation showing oneform of my improved holder attached to a pencil; Fig. 2 is alongitudinal section of the holder detached from the pencil; Fig. 3 is aperspectiveview of the clamp for the eraser, detached; Fig. 4 is a crosssection of the holder on the line A-A of Fig. 2; Fig. 5 is a sideelevation of a modified form of clamp; Fig. 6 is an end view of thesame; Fig. 7 is a plan view of one of the blanks for forming the clampshown in Fig. 5; Fig. 8 is a plan view of the other blank therefor; Fig.9 is a side view showing my improved holder with a modified form oferaser therein; Fig. 10 is a side view of the eraser de tached; Fig. 11is a side View of said modified form of eraser with another form ofholder; Fig. 12 is a side view of a further modification of the clamp;Fig. 13 is an end view thereof; Fig. 14 is a perspective view of afurther modification of the clamp; Fig. 15 is an end view thereof; Fig.16 is a side view; Fig. 17 is a perspective view of a furthermodification of the clamp; Fig. 18 is a similar view of anothermodification.

Referring to the drawing, 1 represents the pencil, and 2 the eraserholder secured there to by pressure oftsprings 3 formed by pressinginward slitted portions of the metal of the holder. The eraser holdingend of the holder-is pressed into the-form of a screw thread as shown at4, and within said screw threaded portion is screwed a clamp 5 for theeraser 6. Said clamp, shown in Figs. 1%, is formed of a single piece ofsheet metal having the two semi-cylindrical clamping jaws 7, and a yokeor bridge 8.

Each jaw is formed with a thread, so that thread thereof screws withinthe threaded portion 1 of the holder. The metal is sulficiently flexibleto permit the jaws to be spread from each other to allow of theinsertion of the eraser, whereupon the jaws are pressed around theeraser and are inserted into the threaded portion of the holder andscrewed therein, when the pres sure of said threaded portion upon thejaws securely holds said eraser in place. At the same time it is an easymatter to adjust the eraser, and for this purpose if necessary, theclamp can be taken out and the eraser shifted in position and the clampthen reinserted.

In the modification shown in Figs. 5 to 8, the threaded portion or jaws9, 10 of the clamp are continued the whole length thereand in this casesaid jaws are conveniently made of sheet metal from blanks shown inFigs. 7 and 8, in which one of the blanks has a tongue 12 and the otheran eye 18, so that by inserting said tongue in said eye and suitablybending the same, a hinge can be formed which holds the two clampingjawstogether.

In Fig. 9 is shown a modified form of 7a of, and are hinged together, asshown at 11, Y

eraser in which it is molded with screw threads 14. This permits it tobe screwed more easily into the clamp 5 and also to be held more firmlythereby. This modified form of eraser is shown in detail in Fig.10, andin Fig. 11 it is shown that this form of eraser may be also used with adifferent form of holder, namely, one consisting of a tube-15 pressedinto the form of a screw and secured to the end of the pencil. In usewith this form of holder the eraser is merely screwed into the holder.

In the modification shown in Figs. 12 and 13, the clamp is made of atube 16, threaded in the same manner as before, and having two or moreslits 17 extending from one end to a pointnear the other end, said otherend being securely braced by means of a bridge 18. In using this clamp,all that is necessary is to spread the two sides of the clampsufficiently to permit the eraser to be inserted, insert the eraser inthe clamp and then screw the clamp into the holder. The pressure of theholder upon the clamp then forces the two halves of the holder togetherand holds the eraser in place.

In the modification shown in Figs. 14, 15, and 16, the clamfi comprisesthe .twopivoted members 19, eac

hooks being adapted to enteropposite" of theeraser, and the two'membersbemg threaded as shown at 22 to bescrewed into the holder.

In the modification shown in F1g. 1(, a

wire 24. is bent into a clamp .to extendon' o posite sides of theeraser. The ends of t ewire are bent slightly inward to form books 25.to slightly compress the eraser, and the sides of the clamp are wavy asshown at 26 so that said sides would fit in the threads of the holder.In 'Fig. 18 two su'chwires 24 are so bent, forming four sides.

I.claim: i

An eraser holding device. comprising a sheet-metal sleeve adapted to besecured at provided with a hook 20, and hinged together as shown at 21,"the ,to' permit the's'ame one end upon an end of a pencil, and havingthe remaining portion nternally screwth-readed, a "rubber-eraser of lessdiameter than the. sleeve, and an externally. screwthreiided'holdei'secured about one end of said rubber eraser, said holder being ada tedto be'screwed into the metal sleeve, t e

number of threads on said holder being less presence of two subscribing

